Why are you asking me? You should be saying "I know the maximum speed limit is X, because after the 'dual carriageway ends' sign you'll be on a single carriageway, and therefore the speed limit there will be..."

(Original post by Juno)
Why are you asking me? You should be saying "I know the maximum speed limit is X, because after the 'dual carriageway ends' sign you'll be on a single carriageway, and therefore the speed limit there will be..."